TarFile.list() outputs a time exactly 6 hours back from expected.

http://buildbot.python.org/all/builders/System%20Z%20Linux%203.x/builds/1023/steps/test/logs/stdio

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FAIL: test_list_command_verbose (test.test_tarfile.CommandLineTest)
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Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.x.edelsohn-zlinux-z/build/Lib/test/test_tarfile.py", line 1797, in test_list_command_verbose
    self.assertEqual(out, expected)
AssertionError: b'?rw[36 chars]-22 12:34:43 tokenize_tests.txt \n?rw------- d[96 chars]t \n' != b'?rw[36 chars]-22 18:34:43 tokenize_tests.txt \n?rw------- d[96 chars]t \n'

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